United States Department of Transportation
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Research notes : construction of rubber modified asphalt concrete (METRO RUMAC) test sections : N. Marine Drive in Portland, Oregon, S.E. Stark Street in Gresham, Oregon.
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1993-12-01
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Alternative Title:Construction of rubber modified asphalt concrete (METRO RUMAC) test sections : N. Marine Drive in Portland, Oregon, S.E. Stark Street in Gresham, Oregon.
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Abstract:Government agencies are burdened with both pavement distress and solid waste disposal problems. In response to these problems, the METRO agency of the Portland urban area sponsored the development of specifications and mix design guidelines for a rubber modified asphalt concrete (RUMAC) hot mix pavement. This pavement, called METRO RUMAC, may reduce the amount of pavement distress by providing a pavement with superior resistance to transverse thermal cracking. In addition, it may reduce solid waste disposal costs by using portions of tires that would normally by solid waste, as about 60% of the tire, by weight, can be recycled into the crumb rubber of METRO RUMAC.
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